Sash balance and lock.



G. R. KELTNER.

Patented Feb. 23, 1915.

3 SHEETSSHBET 1-.

G. R. KELTNER.

SASH BALANCE AND LOOK.

APPLICATION FILED FEB. 25, 1914.

1,129,688, Patented Feb. 23, 1915.

3 SHEETSSHEET 2v WITNESSES INVENTOR 7M eo/ye /7 /f 6/ 77167 Wm M W k ATTORNEYS THE NORRIS PETERS C0,, PHaTa-L/THQ. WASHING WON, D c

G. B. KELTNER.

SASH BALANCE AND LOCK.

APPLICATION FILED $312.25, 1914 1,129,688, Patented Feb. 23, 1915.

3 SHEETSSHEET 3.

WITNESSES INVENTOR ATTORNEYS I'HE NORRIS PETERS CO.. PHOTO L/THQ, WASHINQ fON D. c

; STATES PATEN GEORGE ROBERT KELTNER, OF PHOENIX, ARIZONA, ASSIGNOR OF ONE-HALF T0 WALTER TALBOT, WILLIAM S. I-IEFLIN, AND CARL E. MILLER, ALL OF PHOENIX, ARIZONA. I

SASH. BALANCE AND LOCK.

Specification of Letters Patent.

Application filed February 25, 1914. Serial No. 820,881.

To all whom it may concern:

Be it known that I, GEORGE E. KELTNEn, a citizen of the United States, and a resident of Phoenix, in the county of Maricopa and State of Arizona, have made certain new and useful Improvements in Sash Balances and Locks, of which the following is a specification. I

My present invention relates to sash fasteners and balances, my object being to provide a combined sash balance and lock which will be simple in construction, durable in use and readily and easily operated to produce the desired results.

In the accompanying drawings, forming a part of my invention, Figure 1 1s a vertical longitudinal section taken through a portion of a sash and its frame and through my improvements mounted in connection therewith. Fig. 2 is a horizontal section taken therethrough, and, Fig. 3 is avertical transverse section taken therethrough.

Referring now to these figures, the upper and lower sashes are indicated at A and A respectively, each of these sashes being provided along one side edge with a metallic strip a and a plurality of apertures a arranged in a vertical series and extending also through this strip.

The inner portion B of the window casing B is provided with slots 6 through which project one side of toothed wheels C, the teeth of which engage within the openings a above mentioned so that the wheels 0 will be rotated when the sashes are raised and lowered.

The Wheels C have their hubs 0 rotatably mounted upon inwardly projecting tubular members D secured at their outer ends to the angular side portions E of a supporting plate E secured to the inner surface of the casing portion B before mentioned. The toothed wheels C being thus movably mounted are controlled in their movement by means of springs F coiled about their hub portions 0, before mentioned, and having the inner ends thereof secured to the said hub portions and having the outer ends thereof secured to bolts f carried by the angular portions E of the supporting plates, these springs being so arranged as that the sashes will be substantially balanced in all positions of adjustment.

J ournaled through the tubular members D is the inner portion of a stem G, the outer.

portion of which extends through the inner side wall of the casing B and is provided With a handle or knob G by means of which the stem may be rotated. As clearly seen, the lnner portion of the stem G is provided wlth oppositely projecting actuating lugs g and 9, located at a point between the two toothed wheels and disposed above the upper angular ends it of vertically movable rods H, these rods being extended through apertures in the upper angular portion 6 of a plate I secured to the plate E and provided with angular side portions 11.

The lower ends of rods H are pivotally connected to the upper curved engaging portions j of angular levers J .intermediately pivoted at y" and having their lower ends connected by a retractile coil spring K, the function of which is to draw the lower ends of the levers toward one another and cause their upper ends to move upwardly into engagement with the teeth of the wheels 0 as best shown in Figs. 1 and 3.

Thus from the foregoing it will be seen that to raise the inner sash A, it is simply necessary to turn the stem G toward the left in Fig. 2, by grasping its handle G, lug 9 bearing down upon the respective rod H and effecting the release of the respective lever J from its toothed wheel 0. The sash is then free to be raised and lowered as desired, the respective spring F effecting a balance at all times. As soon as the stem G is released, the sash will be immediately relocked through the action of spring K which returns the parts to the positions shown.

I claim:

1. In a device of the character described, the combination of window sashes provided with notched edges, of independent revoluble toothed wheels engaging the notches of the sashes, tubular members upon which the said wheels are j ournaled, a supporting plate having portions to which the said tubular members are secured in axially alined relation, controlling springs connected at one endto the toothed wheels and at their opposite ends to the supporting plate, a stem j ournaled through the tubular portions and provided with a handle upon its outer end, oppositely projecting lugs secured upon the stem at a point between the toothed wheels, intermediately pivoted levers engageable at one end with the toothed wheels, a spring connecting the opposite ends of the said levers whereby to maintain the same in engaged position, actuating rods connected to the levers and movable to disengage the levers from the toothed wheels, said actuating rods having upper angular ends disposed beneath the said lugs of the stem, for the purpose described.

2. In a device of the character described, the combination of a sash having a notched side edge, a toothed wheel disposed in engagement with the notches of the'sash, a balance spring controlling the toothed wheel, a spring controlled lever having one .end normally in engagement with the toothed wheel at the lower part thereof, a vertically movable member pivotally connected at its lower end with the lever, and a member mounted to turn and having a projection adapted to engage the upper end of said vertically movable member to move the latter and release the lever when it is desired to raise and lower the sash.

3. The combination with window sashes having notched sides, and a casing in which the sashes are mounted to slide, having slots opposite the notched portions of the sashes, vindependent revoluble toothed wheels mounted in the casing and projecting through the slots thereof to engage the notched sides of the sashes, balance springs having connection with the said toothed wheels, spring controlled levers normally in engagement with the said toothed wheels, actuating members connected with the levers and a single member having means for moving the actuating members and independently releasing the said levers, all for the purpose described.

4. The combination with a window sash, and a slotted casing in which the sash is mounted to slide, of a toothed wheel mounted in the casing and projecting through said slot, the said sash being provided at its side with means for engagement by the teeth of said wheel, whereby the wheel willbe rotated when the sash is raised and lowered, a balance spring connected with the toothed wheel, a spring-controlled angular lever having its upper end normally in engagement with the teeth of said wheel, an actuating rod having vertical guided movement and connected withthe said lever, and a stem mounted to turn and. provided with a laterally projecting member for engaging and moving the said actuating rod to release the said lever.

GEORGE ROBERT KELTNER. Witnesses:

M. J. MoOAULEY,

J AS. N. MONAUGHTON.

copies 'of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

